Discrepancy in docs for `PyModule_AddObjectRef`

# Bug report

### Bug description:

The docs for `PyModule_AddObjectRef` say:

https://github.com/python/cpython/blob/cae15267166e217822e3c58ac22b7817162f323a/Doc/c-api/module.rst?plain=1#L520-L521

However the function actually returns `-1` in that case:

https://github.com/python/cpython/blob/cae15267166e217822e3c58ac22b7817162f323a/Python/modsupport.c#L590-L597

We should update the documentation to reflect that.

### CPython versions tested on:

CPython main branch

### Operating systems tested on:

Linux


### Linked PRs
* gh-121750
* gh-121752
* gh-121753

	if (!value) {
	if (!PyErr_Occurred()) {
	PyErr_SetString(PyExc_SystemError,
	"PyModule_AddObjectRef() must be called "
	"with an exception raised if value is NULL");
	}
	return -1;
	}

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Discrepancy in docs for `PyModule_AddObjectRef` #121749

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	Return ``NULL`` if value is ``NULL``. It must be called with an exception
	raised in this case.

Uh oh!

Discrepancy in docs for PyModule_AddObjectRef #121749

Description

Bug report

Bug description:

CPython versions tested on:

Operating systems tested on:

Linked PRs

Metadata

Metadata

Assignees

Labels

Projects

Milestone

Relationships

Development

Issue actions

Discrepancy in docs for `PyModule_AddObjectRef` #121749